Definition: The associative property states that you can add or multiply regardless of how the numbers are grouped. By 'grouped' we mean 'how you use parenthesis'.
When you are having difficulty breathing, or your chest is tight, or when you are wheezing, Ventolin Rotacaps open up the breathing tubes in your lungs to help with breathing. Because the medicine in your Ventolin Rotacaps gives fast relief from your chest symptoms, it is often called a 'reliever'.
Continuous positive airway pressure (CPAP): CPAP is a fixed positive pressure throughout the respiratory cycle. CPAP appears to be more effective in reducing the need for tracheal intubation and possibly mortality in patients presenting with with acute cardiogenic pulmonary oedema (ACPE). Bi-level positive airway pressure (BiPAP): 1  BiPAP is when the ventilator delivers different levels of pressure during inspiration (IPAP) and expiration (EPAP). 2  BiPAP ventilation appears to be more effective in reducing mortality and the need for tracheal intubation in patients with an acute decompensation of COPD.